Motor operated dispensing pump



3 Sheets-Sheet l L. R'. -HARTLEY MOTOR OPERATED DISPENSING PUMP Filed oct. 11I 1926 I III o y I Q I. .,o I1 I Y I- I+.aIIII III .LIMPIII ,Il IrnIIIH IIvll I H lIIIlIWlhm. hnuulIHII mlb III--- I l I I IIIIm I I IIIImIwIIIIlJIIIIuIIIIII ITI! II IIII IIIIIIIINIIIIII.

July 14, 1931.

Julyllvl, 1931. R. HARTLEY 1,814,154

MOTOR OPERATED DISPENSING PUMP Filed OC'C. l1, 1926 3 Sheets-Sheet 2 July 14, 1931.

L. R. HARTLEYr MQToR ,OPERATED DISPENSING PUMP FiledV Oct. l11, 1926 3 Sheets-Sheet 5 Patented J'uly 14, 1931 UNITED STATES PATENT FFICE LEE B.. HARTLEY, F FORT WAYNE, INDIANA, ASSIGNOR TO F. BOWSER. 8a COMPANY, INC., 0F FORT WAYNE, INDIANA, A CORPORATTON OF INDIANA MOTOR OPERATED DISPENSING PUMP Application led October 11, 1926.

This invention relates to a dispensing device for gasoline or other liquid and has for its object the provision of an improved dispensing pump which may be equipped withv V an electrically energized motor. Other objects will appear from the following description.

The invention is exemplified in the combination and arrangement of parts shown in the accompanying drawings and described in the following` specification, and it is more particularly pointed out in the appended claims.

In the drawings F ig. 1 is an elevation with parts broken away of the lower portion of a dispensing pump including one embodiment of the present invention;

Fig. 2 is a view similar to Fig. 1 showing 2o the upper portion of the dispensing pump;

Fig. 3 is a section on line 3-3 of Fig. 2;

Fig. 4 is a section on line 4-4 of Fig. 3;

Fig. 5 is a section on line 5 5 of Fig. 3;

Fig. 6 is a section on line 6 6 of Fig. 3.

In the drawings, the numeral 10 designates the base having a pump cylinder 11 mounted thereon provided with a skeleton frame including upright corner posts 12 resting on the base 10, as more fully described and claimed in my copending application, Serial Number 139,071, filed October 2, 1926,'for measuring and dispensing pump. A piston rod 13 projects from the upper end of the pump cylinder 11 and is connected to a rack 14 which meshes with a pinion15 secured to a shaft 16. The shaft 16 is journalled in bearings in a supporting bracket 17 connected to the corner posts 12 by bolts 18. A sprocket wheel 19 is secured to the end of the shaft 16 and is connected by a sprocket chain 2O with a pinion 21 on a stud shaft 22. A hand crank 23 is secured to the stud shaft 22 and suitable clutch mechanism is provided between the stud shaft 22 and the pinion 21 to permit the sprocket chain 2O to be driven when the hand crank 23 is rotated. The pinion 21 is preferably normally disconnected from the stud shaft 22 so that the shaft 16 may be power driven without rotating the hand crank 23. An electric motor 24 is supported Serial No. 140,702.

on a platform 25 connected with the corner posts 12 by rivets or bolts 26. A shaft 27 extends downwardly from the motor 24 and is provided with a. worm 23 which meshes with a worm wheel 29 rotatably mounted on a shaft 30 journalled in the bracket 17 as shown in Fig. 5. A friction drive 31 connects the worm wheel 29 with the shaft 30 to transmit the power from the motor shaft 27 to the shaft 30 but to permit relative movement of the two shafts under force greater than the load which the friction drive will transmit. The friction drive 31 comprises a series of plates arranged face to face, alternate plates being connected with the worm wheel 29 by bolts 32 while the remaining plates have tongues thereon engaging key ways in the shaft 30. The friction plates are -held in contact with each other by springs actuated by the bolts 32. A worm 33 is secured to the shaft 30 and meshes with a worm wheel 34 rotatably mounted on the shaft 16. An end thrust bearing 35 is provided at one end of the shaft 30 to take up the thrust of the shaft 30.

Clutch mechanism is provided for connecting the worm wheel 34 with the shaft 16, as shown in Figs. 5 and 6. The worm wheel 34 is provided with a circular recess in one face thereof for receiving clutch segments 35l and slide blocks 36. The clutch segments 35 are keyed to the shaft 16 and the worm wheel 34 is free to rotate on the segments 35 and shaft 16. The segments 35 and slide blocks 36 are held in the recess in the worm wheel 34 by a ring 37 secured to the face of the worm wheel. The slide blocks 36 have projections 39 .on their outer ends for engaging depressions 40 in the inner face of the rim of the worm wheel 34. Tapered notches 41 are formed on the inner ends of the slide blocks 36 for receiving prongs 42 which project from a` clutch member 43 splined on the shaft 16. The prongs 42 are held in alinement with the notches 41 in the slide blocks 36 and when the clutch member 43 is moved to the left, as viewed in Fig. 6, the prongs 42 will enter the notches 41 and force the slide blocks 36 outwardly to lock the worm wheel 34 to the shaft 16. The clutch member 43 is operated by an arm 44 carried by a sleeve 45 xed to av rock I shaft 46 journalled in the bracket member 17. A spring 47 surrounds a collar 47 secured to one end of the rock shaft 46, one end of the spring being fixed to the rock shaft and collar by a pin extending through the shaft. An arm 48 is carried by a sleeve 46 loosely mounted on the shaft 46. rThe collar 47 and sleeve 48 have .jaws 47 and 48, respectively, normally held in engagement with one another by the spring 47 which engages the arm 4S. The arm 48 carries a. link 49 which entends downwardly, as shown in Figs. 1 and 2, and is connected to an arm 50 on a stud shaft 51. An operating handle 52 is journalled in a panel 53 carried by the corner posts l2. Then the operating handle 52 is moved to the left in Fig. 1, the link 49 will be pulled downwardly, placing the spring 47 in tension tending to rotate the shaft 46 Vin the direction to move the clutch 43 to the left, as seen in Fig. 6, and when the projections and depressions 39 and 4() come into registra.- tion, the shaft 46 will be rotated by the spring 47 to clutch the worm wheel 64 to the shaft 16. At the same time, the motor 24 will be started to drive the shaft 16 through the two clutches and train of gearing and operate the pump.

Suitable switch mechanism for the motor is located in a housing 54 and is operated by a spring-held plunger 55. A tappet 56 engages the upper end of the plunger 55 and is operated by an arm 57 connected therewith. The arm 57, as shown in Fig. 2, is connected by a link 58 with an arm 59 on the rock shaft 46 so that movement of the handle 52 not only operates the clutch 43 but also closes the switch to start the motor 24. A. stop rod 60 carries a plurality of stops 61 adjustable into the path of a lug 62 on the lower end of the rack 14. The stops 61 are set by means of a knob 63 and dial 64 connected by gearing 65 with the rod 60, as more fully explained in my copending application, referred to above. The stops 61 are adjusted to arrest the upward movement of the pump piston rod when measured quantities determined by the position of the dial 64 have been pumped. l/Vhen the upward stroke of the pump is arrested, the motor 24 will continue to operate and the worm 33 will hold the pump in its up position until the lever 52 is released. Upon release of the lever 52, the aw 48 moves the jaw 47 and disengages'the clutch 43 permitting the pump plunger to return by gravity to its initial position. During rotation of the motor after the pump has been arrested, the parts of the friction clutch 61 will slip to permit the rack 14 to remain in stationary position while the motor continues to operate.

Suitable indicating and registering mechanism 66 is connected by gears 67 with the shaft 16 and a ticket-printing device 68 isY driven by a` gear wheel 69 mounted on the shaft 16. A sheet metal housing 70 incloses the supporting frame and operating mechanism and is provided with a canopy 71 the top which contains electrical lights 72 for illuminating the pump. A conduit 7 3 extends upwardly from the pumping cylinder 11 and is connected at its upper end Vto suitable discharge hose, not shown.

The supporting framework comprises four angle bars each of which is L-shaped in hori- Zent-al cross-section as shown vat 1'2 in Fig. I3 and each of which is secured to the heads of the pumpas shown in Fig. 1. The pump with the angle bars secured thereto may be mounted 0n the base 1.0. At any desired elevation, an auxiliary frame 17 may be detachably secured vby means of the bolts 18 tio the :angle bars 12 as shown in Fig. J3. In asimilar manner, the mot-or 24 may be mounted fon the platform or cross-partition 25, which in turn is detachably secured at 261120 .the Vangle ba'rs 12. The auxiliary .frames 17 and 25 `:thus :eo-.operate with the frame of the pump and the base 10 to adord .a very rigid .and substantial support-ing structure for V'the motor :andthe operating mechanism between the motor the pump' Y It will also be seen iby referring to 1g. 3 that the angle irons or vertical supporting members 12 may be provided with radially extending brackets 74 having vertical plates 12 for receiving the panels 76 overlapping relation as indicated .at 77. The :skeleton frame comprising the angle bars .12 therefore support :the enclosing panels 75 and '76 .and also the interior 4operating mechanism and the motor connected thereto.

This construction makes it convenient .to remove the power `drive and replace it Iba power drive of another Ikind, if desired. or instance, the electric drive may be easily Vremoved and replaced by a .pneumatic drive such as shown in my (1o-pending :application Serial No. 139,071. Where such substitution is made, the pump cylinder 11, the rack 14 and the shaft 16 may Ibe retained the wremainder of the driving mechanism mounted on the supporting angle bars 12 in the upper portion of the housing-of Jdie dispensing apparat-us.

The provision of the skeleton frame comprising the angle bars 12 to support the Voperating meehanism and the motor independently of the pump 11 makes such substitution easily possible and commercially practicable. This is a great advantage in the manufacture of a line of pumps as i-t permits the use fof standard parts for a variety of pumpssuit-able for operation Linder varying conditions. It also permits a dispensing unit which has once been installed 1to lbe readily transformed from a hand-operated unit :to a power driven unit, or from a power driven unit of `one kind to a power driven unit of another kind. Vlien the available form of rsource 'of power is changed, this permits the adaptation of the lies old dispensing unit to a new source of power without the necessity of installing a new dispensing unit.

The skeleton frame arrangement also lends itself to a pedestal form of pump of attractive appearance since the operating mechanism may be enclosed in a housing consisting of sheet metal panels 76 detachably mounted on the skeleton frame and easily removable in sections to permit access to the operatingmechanism for repair and adjustment.

The upper section of the housing as shown in Fig. 2 may be of less area in cross-section than the lower section of the housing. On the upper section of thehousing the canopy 71 may be mounted with the electric lamp 7 2 therein in position to direct its rays through the glass window 73. This sliding arrangement illuminates the upper section of the pump housing, thus makingthe dispensing upit stand out distinctly and clearly without g are.

Obviously those skilled in the art may make various changes in the details and arrangement of parts without departing from the spirit and scope of the invention as defined by the claims hereto appended and I wish therefore not to be restricted to the precise construction herein disclosed.

Having thus fully disclosed an embodiment of my invention, what'I desire to secure by Letters Patent of the United States is:

l. The combination with a dispensing pump, of a frame extending upwardly above said pump, a supporting platform removably mounted on said frame, an electricl motor carried by said platform, a bracketremovably attached to said frame, and transmission mechanism mounted on said bracket for transmitting movement from said motor to said pump.

2. The combination with a reciprocating pump, of a frame extending upwardly above said pump, a bracket mounted on said frame, a shaft journaled in said bracket, rack and pinion mechanism operated by said shaft for driving said pump, a motor support mounted on said frame above said bracket, a rotary motor carried by said support, a 'vertical shaft extending downwardly from said motor to said bracket, and gearing mounted on said bracket for connecting said vertical shaft with said first-mentioned shaft.

3. The combination with a vertically reciprocating pump, of a frame extending upwardly from said pump, a bracket mounted on said frame above said pump, a horizontally disposed shaft journalled in said bracket, rack and pinion mechanism fordriving said pump from said shaft, a motor support mounted on said frame above said bracket, a rotary motor carried by said support, an upright shaft extending downwardly from said motor to said v bracket, and worm gearing for transmitting movement from said upright shaft to said horizontal shaft.

t. The combination with a vertically reciprocating dispensing pump, of corner posts extending upwardly above said pump, a bracket carried by said corner posts above said pump, a horizontal shaft journaled in said bracket, rack and pinion mechanism for operating said pump from said shaft, a motor support mounted on said corner posts above said bracket, a motor rotatable about an upright axis and carried by said motor support, a vertical shaft extending downwardly from said motor, transmission mechanism mounted on said bracket and affording a driving connection between said vertical shaft and said horizontal shaft, said transmission mechanism including a frictional slip drive.

5. The combination with a vertically reciprocating dispensing pump, of an upright rack for operating said pump, a frame extending upwardly above said pump, a bracket carried by said frame, a horizontal shaft journaled in said bracket and having a pinion thereon meshing with said rack, a motor support mounted on said frame above said bracket, a rotary motor on said motor support, a vertical shaft extending downwardly from said motor, and transmission mechanism mounted on said bracket and forming a driving connection between said vertical shaft and said horizontal shaft, said transmission mechanism including a worm drive operated by said vertical shaft, a friction connection between said vertical shaft and worm drive, and a releasable clutch between said worm drive and horizontal shaft.

6. In dispensing apparatus, the combination with a pump, of supporting framework comprising spaced-apart members supported from said pump, an auxiliary frame connected to said spaced-apart supporting members, means for driving the pump comprising a rack, means mounted on said auxiliary frame and connected to said rack to operate the latter, and a motor supported on said spacedapart members for driving said operating mechanism.

7. In dispensing apparatus, the combina- Y tion with a motor, of a worm connected to said motor, a worm wheel meshing with said worm, a. driven shaft, a friction clutch between said worm wheel and said driven shaft, a worm on said driven shaft, a worm wheel meshing with said last-named worm, a reciprocating pump comprising a piston and piston rod, a rack connected to said piston rod, a pinion meshing with said rack, an operating shaft for driving said pinion, and a clutch for connecting said last-named worm wheel at will to said operating shaft.

In testimony whereof I have signed my name to this specification on this 5th day of October, A. D. 1926.

LEE R. HARTLEY. 

